RapidEngage Acquired By QuestionPro

San Diego-based RapidEngage, a developer of online survey software and tools used to collect customer feedback and to engage users, has been acquired by fellow online survey company QuestionPro. Financial terms of the buy were not disclosed. RapidEngage was founded by Daniel Marashlian, Sean Callahan, and Rodney Rumford, who also founded photo sharing app Plixi (TweetPhoto), which had been acquired by Lockerz in 2011. RapidEngage was one of the companies incubated at EvoNexus. Co-founder Sean Callahan was one of the 2013 socalTECH 50.